The 1994 murder case of 24-year-old Amy Lopez, an American tourist found dead in Koblenz, has seen a notable development with the arrest of an 81-year-old suspect. This breakthrough came nearly 31 years after Lopez's tragic death, during a trip across Europe. Prosecutor Mario Mannweiler expressed his initial disbelief and later relief upon receiving a DNA match that could provide answers to a case that had haunted investigators for decades. The case, which remains a disturbing reminder of unresolved crime, was likened to an 'open wound' that had never healed in the minds of those who worked on it.